diff --git a/src/TelegramPanel.Web/Components/Pages/Tasks.razor b/src/TelegramPanel.Web/Components/Pages/Tasks.razor
index bceb1d0..a69dc8d 100644
--- a/src/TelegramPanel.Web/Components/Pages/Tasks.razor
+++ b/src/TelegramPanel.Web/Components/Pages/Tasks.razor
@@ -6,6 +6,8 @@
 @inject IDialogService DialogService
 @using TelegramPanel.Data.Entities
 @using TelegramPanel.Core.BatchTasks
+@using System.Text.Json
+@using TelegramPanel.Web.Services
 @implements IDisposable
 
 <PageTitle>任务中心 - Telegram Panel</PageTitle>
@@ -62,10 +64,10 @@
                     <MudChip T="string" Size="Size.Small" Icon="@GetTaskIcon(context.TaskType)">@GetTaskTypeName(context.TaskType)</MudChip>
                 </MudTd>
                 <MudTd DataLabel="状态">
-                    <MudChip T="string" Size="Size.Small" Color="@GetStatusColor(context.Status)">@GetStatusName(context.Status)</MudChip>
+                    <MudChip T="string" Size="Size.Small" Color="@GetStatusColor(GetDisplayStatus(context))">@GetStatusName(GetDisplayStatus(context))</MudChip>
                 </MudTd>
                 <MudTd DataLabel="进度">
-                    <MudProgressLinear Value="@GetProgress(context)" Color="@GetProgressColor(context.Status)" />
+                    <MudProgressLinear Value="@GetProgress(context)" Color="@GetProgressColor(GetDisplayStatus(context))" />
                     <MudText Typo="Typo.caption">@context.Completed / @context.Total (@context.Failed 失败)</MudText>
                 </MudTd>
                 <MudTd DataLabel="创建时间"><PanelTime Value="context.CreatedAt" /></MudTd>
@@ -82,12 +84,12 @@
                 <MudTd DataLabel="操作">
                     <MudIconButton Icon="@Icons.Material.Filled.Info" Size="Size.Small" Color="Color.Info"
                                    OnClick="@(() => ShowTaskDetails(context))" />
-                    @if (context.Status == "pending" || context.Status == "running")
+                    @if (GetDisplayStatus(context) == "pending" || GetDisplayStatus(context) == "running")
                     {
                         <MudIconButton Icon="@Icons.Material.Filled.Cancel" Size="Size.Small" Color="Color.Warning"
                                        OnClick="@(() => CancelTask(context.Id))" />
                     }
-                    @if (context.Status == "completed" || context.Status == "failed")
+                    @if (GetDisplayStatus(context) == "completed" || GetDisplayStatus(context) == "failed")
                     {
                         <MudIconButton Icon="@Icons.Material.Filled.Delete" Size="Size.Small" Color="Color.Error"
                                        OnClick="@(() => DeleteTask(context.Id))" />
@@ -112,7 +114,7 @@
 
     private IEnumerable<BatchTask> filteredTasks =>
         tasks.Where(t =>
-            (filterStatus == "all" || t.Status == filterStatus) &&
+            (filterStatus == "all" || GetDisplayStatus(t) == filterStatus) &&
             (filterCategory == "all" || GetCategory(t.TaskType) == filterCategory));
 
     private IEnumerable<string> AvailableCategories =>
@@ -277,11 +279,20 @@
         _ => Color.Default
     };
 
+    private static string GetDisplayStatus(BatchTask task)
+    {
+        if (task.Status == "failed" && task.CompletedAt.HasValue && task.Total > 0 && task.Completed >= task.Total)
+            return "completed";
+
+        return task.Status;
+    }
+
     private void ShowTaskDetails(BatchTask task)
     {
         var createdAt = TimeZone.Format(task.CreatedAt, "yyyy-MM-dd HH:mm");
+        var displayStatus = GetDisplayStatus(task);
         var details = $"任务类型: {GetTaskTypeName(task.TaskType)}\n" +
-                     $"状态: {GetStatusName(task.Status)}\n" +
+                     $"状态: {GetStatusName(displayStatus)}\n" +
                      $"总数: {task.Total}\n" +
                      $"已完成: {task.Completed}\n" +
                      $"失败: {task.Failed}\n" +
@@ -293,7 +304,10 @@
         if (task.CompletedAt.HasValue)
             details += $"完成时间: {TimeZone.Format(task.CompletedAt.Value, "yyyy-MM-dd HH:mm")}\n";
 
-        if (!string.IsNullOrEmpty(task.Config))
+        var failureLines = ExtractBotAdminFailureLines(task);
+        if (failureLines.Count > 0)
+            details += $"\n失败频道:\n{string.Join('\n', failureLines)}";
+        else if (!IsBotAdminTask(task.TaskType) && !string.IsNullOrEmpty(task.Config))
             details += $"\n配置信息:\n{task.Config}";
 
         var html = System.Net.WebUtility.HtmlEncode(details)
@@ -302,6 +316,67 @@
         DialogService.ShowMessageBox("任务详情", (MarkupString)html);
     }
 
+    private static bool IsBotAdminTask(string taskType) =>
+        taskType is BatchTaskTypes.BotChannelSetAdminsByAccount or BatchTaskTypes.BotSetAdmins;
+
+    private static List<string> ExtractBotAdminFailureLines(BatchTask task)
+    {
+        var lines = new List<string>();
+        if (!IsBotAdminTask(task.TaskType) || string.IsNullOrWhiteSpace(task.Config) || task.Failed <= 0)
+            return lines;
+
+        try
+        {
+            using var doc = JsonDocument.Parse(task.Config);
+            var root = doc.RootElement;
+
+            if (root.TryGetProperty("FailureLines", out var failureLinesElement)
+                && failureLinesElement.ValueKind == JsonValueKind.Array)
+            {
+                foreach (var lineElement in failureLinesElement.EnumerateArray())
+                {
+                    var line = (lineElement.GetString() ?? string.Empty).Trim();
+                    if (line.Length > 0)
+                        lines.Add(line);
+                }
+
+                if (lines.Count > 0)
+                    return lines;
+            }
+
+            if (root.TryGetProperty("Failures", out var failuresElement)
+                && failuresElement.ValueKind == JsonValueKind.Array)
+            {
+                var failures = new List<BotAdminTaskFailureItem>();
+                foreach (var item in failuresElement.EnumerateArray())
+                {
+                    if (item.ValueKind != JsonValueKind.Object)
+                        continue;
+
+                    var failure = new BotAdminTaskFailureItem
+                    {
+                        ChannelTelegramId = item.TryGetProperty("ChannelTelegramId", out var channelId) && channelId.TryGetInt64(out var id) ? id : 0,
+                        ChannelTitle = item.TryGetProperty("ChannelTitle", out var channelTitle) ? channelTitle.GetString() ?? string.Empty : string.Empty,
+                        Username = item.TryGetProperty("Username", out var username) ? username.GetString() : null,
+                        UserId = item.TryGetProperty("UserId", out var userId) && userId.TryGetInt64(out var uid) ? uid : null,
+                        Reason = item.TryGetProperty("Reason", out var reason) ? reason.GetString() ?? string.Empty : string.Empty
+                    };
+
+                    failures.Add(failure);
+                }
+
+                if (failures.Count > 0)
+                    lines = BotAdminTaskFailureFormatter.BuildLines(failures);
+            }
+        }
+        catch
+        {
+            // 配置异常时回退到默认展示，不中断详情弹窗。
+        }
+
+        return lines;
+    }
+
     private async Task CancelTask(int id)
     {
         bool? result = await DialogService.ShowMessageBox(
diff --git a/src/TelegramPanel.Web/Services/BatchTaskBackgroundService.cs b/src/TelegramPanel.Web/Services/BatchTaskBackgroundService.cs
index 0ab3d14..8217592 100644
--- a/src/TelegramPanel.Web/Services/BatchTaskBackgroundService.cs
+++ b/src/TelegramPanel.Web/Services/BatchTaskBackgroundService.cs
@@ -160,9 +160,9 @@ public sealed class BatchTaskBackgroundService : BackgroundService
                 if (latest != null && latest.Status != "running")
                     return;
 
-                await taskManagement.CompleteTaskAsync(pending.Id, success: failed == 0);
-                _logger.LogInformation("Batch task completed: {TaskId} {TaskType} (ok={Ok}, completed={Completed}, failed={Failed})",
-                    pending.Id, pending.TaskType, failed == 0, completed, failed);
+                await taskManagement.CompleteTaskAsync(pending.Id, success: true);
+                _logger.LogInformation("Batch task completed: {TaskId} {TaskType} (completed={Completed}, failed={Failed})",
+                    pending.Id, pending.TaskType, completed, failed);
             }
             catch (Exception ex)
             {